1253510553 has 8 divisors (see below), whose sum is σ = 1671774048. Its totient is φ = 835460384.

The previous prime is 1253510551. The next prime is 1253510563. The reversal of 1253510553 is 3550153521.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1253510553 - 2¹ = 1253510551 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1253510553.

It is not an unprimeable number, because it can be changed into a prime (1253510551) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 39075 + ... + 63512.

It is an arithmetic number, because the mean of its divisors is an integer number (208971756).

Almost surely, 2^1253510553 is an apocalyptic number.

It is an amenable number.

1253510553 is a deficient number, since it is larger than the sum of its proper divisors (418263495).

1253510553 is a wasteful number, since it uses less digits than its factorization.

1253510553 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 106663.

The product of its (nonzero) digits is 11250, while the sum is 30.

The square root of 1253510553 is about 35404.9509673435. The cubic root of 1253510553 is about 1078.2248367315.

The spelling of 1253510553 in words is "one billion, two hundred fifty-three million, five hundred ten thousand, five hundred fifty-three".